Metal-reducing machine.



B. M.`W. HANSON.

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B. M. W. HANSON. METAL RBDUGIITG MACHINE.

APPLIGATION FILED MAY 5, 190s.

905,523. Patented Dee. 1, 1908. SSHEBTS-SHBBT 2.

4*'*- l g 4/ VM/ @3K I i 4Q? VI fc? I y 4 Inventor.' Wl t asses" M Wanson t'yz/S'Aorney B. M. W. HANSON. METAL REDUGING MACHINE.

W//M .w @www l www M wm /l W//- d /4 A///, I m n Am WH,.MME???W@t M v Mu Q w APPLICATION FILED MAY 5, 1908.

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- UNITED sTATEsrATnNT orrion.

BENGT M. W. HANSON, OF HARTFORD, CONNECTICUT, ASSIGNOR TO PRATT & WHITNEY COM- HAITY, OF HARTFORD, CONNECTICUT, A CORPORATION OF NEW JERSEY.

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Specification of Letters Patent. Application flied Hay 5, 1908. Serial No. #$1,048.

Patented Dec. 1, 1908.

Hartford, .in the county of Hartford and; State of Connecticut, have invented certain new and useful Improvements in Metal-Reducing Machines, of which the following is a specification.v

This invention relates to metal-reducing machines one of the primary objects of the invention being to providesimple land effect ive means for quickly obtaining access to the work for calipering and other pur oses.

A metal-reducing machine emb invention can be used with -advantage in many different connections for instance grinding various' articles. The invention possesses vother features of utility in addition to that to which brief `allusion has been made l'and all of these will be fully set forth in the following description of that form of embodiment of the invention `incorporated in the machine illustrated in detail in the drawn ings accompanying and forming part of the present specification.

Referring to said drawings, Figure 1 is a side elevation of a machine involving my invention.' F 2 is an end elevaton of said machine, .the bed and slidebeing `in transverse sect1on. Fig. '3 l1s a horizontal -secmember and certain adjunctive devices. Fig. l is a section. on the line i-Ll Fig. 3 looking in the direction of the arrow.

Like characters refer to like parts throughout the several figures ofthe drawings.

Referring first to Figs. 1 and 2 the nu meral 2 denotes the bed of a metal reducing machine in which my invention may be advantageously embodied. On this bed I have shown as mounted a carrier as 3 which may consist of a slide mounted to travel 4longitudinally of said bed 2, the latter being pro vided with suitable ways for the slide. In connection with. the latter I may provide guards as 4 and These guards and the results achieved thereby are novel but the former are not claimed herein but are made the basis of a copending application Serial No. 432,095 filed vMay 11, 1908. The bed 2 may be provided with a `suitably-operated 'pinion as 6 meshing with 'a'racl as 7 fastened tothe underside of the slide 3 which presents a simplemeans for moving said slide backward and Iforward as occasion may require.

ying my The machine comprises two members one of which may support the work and the other of which may support the tool of whatever character thesepartsmay be. The work! holder or support shownv in the drawin s is designated by 8 and it may consist of a ace.

plate or chuck suitably mounted and to which the work may be connected in any d.-

sirablc manner. The tool-supporting member is denoted in a general way by 9 and in the present instance is movable -relatively to the work-'supporting member 8. Preferably the tool-supporting member is mounted for swinging movement by reason of which it can be readily moved intol or out of operative relation.

The tool-supporting member 9 includes in its make up an arm as 10 which is repre sented as being hollow, and as having open-- ings near' its inner end `to receive bushings or 'sleeves las 11 and 12. The bushings 11.- and 12 are rigidly connected to said arm 10 in any suitable manner for example by plus as 13 in each case. Said bushings thereforeswing with said arm or tool-supportproper, and they may be mounted in. any desirable way, for illustration by means of bearings as 11 rising from the Slide 3.

The two bushings are represented as `rotatively supporting a shaft as 15 from which as `will hereinafter appear the ltool receives ty e. y

AI'lhe swinging arm 10 rotatively supports at its outer end a tool-spindle as 20 to which is fastened within said arm a pulley as 21 of comparatively small diameter connected by a -belt as 22 with a pulley as 23 of'larger diameter fastened to the shaft 15 by reason A of which'said tool-spindle can be turned'at a high speed. The `tool-spindle vand its c0 ope-rating parts are also of novel `construption but are not claimed themselves herein but are made the basis of a separate applica tion filed May 5 1908 -Serial No. 431,049.

2 ceases' The tool-spindle 2'0 it might be stated consists of a sectional quill, the outer section of which carries theA tool 245 and which is removably fitted in a sleeve as clamped by a4 clamping-member as 26 carried by the hub 27 at the outer end of the swinging arm 10, the tool-spindle or sectional quill extending through ysaid hub. It will be obvious that when the motor 19 is thrown into action the tool 24 through the intermediate parts will be caused to rotate. By retracting the slide 3 from the position in which it is shown in `fFig. 1 a sutlicient distance the tool can be Withdrawn from the work after which as will hereinafter appear the arm 10 may be swungup. The work connected with the face-plate or chuck 8 is hollow and the tool is introduced into the work forlreducing the interior thereof. As reduction in the interior diameter of 'the work progresses it is necessary from time to time to internally caliper the work; by moving the slide 3 backl Ward and then swingingl the arm 10 .up-ward the operation of calipering or measuring the inside diameter of the work is materially facilitated. After 'calipering of the work has been concluded the arm 10 will be swungl down and then held following which the slide 3 will be advanced to carry the tool 24- into the work. The slide 3 c an be recipro cated and the arm 10 can be swung up withl out stopping the tool 24.

Means are provided for holding the arm 10 in its operati-ve relation in a positive certain.manner and those 4shown for this purpose will now be set forth. The arni 10 is shown as provided with a downwardly ycurved or overhang-ing portion 29 terminating in a casing as 29 for a latch as 30 sliding in said casing and coperatiye with a horn or projection as 31 extendinoutwardly from the slide 3. The latch 30'is represented as bored longitudinally to receive a coiled push spring as 32 bearing at its forward end against said latch and at its rear against a `screw or removable plug as 33 threaded into the outer portion of said casing 29. The spring at all times holds said latch in its working position and moves lit toward such position when it is released.

Any suitable means may be provided for retracting the latch 30 for example raclr and pinion means, the latch being illustrated as being clear that prior to the point the latch is thus engaged the'slide 3 is retracted a distance suficient to carry the tool 24 out of connection with said arm which facilitates,

its upward swinging movement. The force applied by said means need not necessarily be sufficient to lift the arm without the aid of the operator butvnced simply be sufficient to counterl'ialance the arm and the parts sustained thereby so that it is a simple and easy matter for the attendant of the machine to lift the arm prior to caliperingd l will now set forth the means illustrated for accomplishinpY the result in question.

Within a passage as38 in the slide 3 is an automatically-operable member as the plun ger 39 which reciprocates transversely of said slide and which in the present case is operative by spring means such for example as the coiled push spring 40 located in said passage 38 and bearing at one end against the plunger 39 andat the other against a screw-plug as 41 removably fitted in the outer end of said passage 38. There is therefore at all times alifting force applied to the arm 10 which is normally resisted by the latch 30.

The plunger 39 has a rack l2 meshing with a segment as 43 forming part of the bushing 11. The latter and the segment may if desired be made inteoral. rlhe s rinw-oien.

ated plunger 39 tends constantly to apply through the intermediate parts an npwardly swinging` action to the arm 105 the latter during grinding being positively held by tho latch 30. i y

It will be assumed that the tool 2A: is with;` in the work as shown in Fig. 1,'that the ino-l tor 19 is in action and therefore that the tool is rotating. The interior of the work can then be ground or reduced. It will be further assumed that thc operator desires to caliper the work. 'lo accomplish this the slide 3 istdrawn back sul'iicient to carry the tool from the work at which point the latch 30 will be drawn back by the manipulation of the arm 37 thereby wholly freeing the swinging arm 10 whereby the latter can be quicklyswung upward to attain the desired end7 said arm, moving about the driving shaft 15 as a pivot. l do not restrict myself to the exact disclosure made by the accompanying drawings and the hereinbefore description of the same as certain variations may be adopted within the scope of my claims.

`What l daim. is

1. A machine of theclass described com- SUPP against movement.

prising two members one of which constitutes a work-support and the other a toolort and one of said members being movable with respect to the coperating member, and automatically-operative means tending to shift said movable member into an inoperative position with respect to the companion member. y l 2. A machine of the class'described comprising two members one of which constitutes a work-support and the other a toolsu port and one of said members being movfab e with respect to the coperatingy member,

automatically-operative means tending to operate said movable member, and means for normally holding said movable member 3. A machine of the class described comprising two members tutes a work-support and the other a toolsupport and one of said members beingvmovab e with respect to the coperating member, automatically-operative means tending to apply a constant shifting movement to said movable member, and manuallyoperable latch means for normally holding said movable member against movement.

4. A machine of the class described comprising two members one of which constitutes a work-support and the other a tool- `support and one of said members being mounted to swing with respectto the companion member, spring-operative means tending to apply a shifting force to said swinging member, and means for normally holding` the swinging'member against movement.

5. A machine ofthe class described comprising a swinging tool-support, automatically-operative means tending at all times to swing said support, and means for normally holding said tool-support against movement. 6. A machine of the class described comprising a' swinging tool-support, spring-operated means tending and means for normally holding said support against movement.

T. A machine of the class described comprising a slide, a movable support on said slide, means tending to operate said movable support, and means on the slide for normally holding the support against movement.

S. A machine of the class described comprising a slide, a swinging support on said slide, automatically-operative means on the one of which constito swing said support, I

prising a swinging arm provided with a toothed member movable therewith and a spring-operated rack engaging said toothed` member. v

10. A machine of the class described comprising a swinging arm, a shaft serving as a pivot for said arm, a spindle carried by the arm, driving connectionsbetween the shaft and the spindle, and automatically operative l means tending constantly to swing said arm into an inoperative `osition.

11. A machine o the class described comprising a swinging arm, springoperated means tending constantly to shift said-arm, and manually-operable latching means for normally holding the arm against movement.

12. A machine oi' the classdescribed comprising a slide, a swinging arm supported by said slide, a toothed member carried by said arm, a spring-operated rack on the slide, cooperative with said toothed member, and a latch on the arm for engaging the slide.

13. A machine of the class describedcomprising a slide, a swinging arm supported'by said slide, a. toothed member carried by the arm, a rack the teeth of which mesh with those of said toothed member, the slide having a passage to receive said rack, a spring -in said passage bearing at one end against the rack, the passa e having a plug against which the spring a so bears, and means for normally preventing swinging movement of said arm.

14. A machine of the class described comprising a swinging tool-support, a slide carrying said tool-support, a spring-operated member for applying a constant shifting force to said swinging tool-support., and a yieldablc latch carriedby the arm and adapted to engage the slide to prevent movement normally ofy said arm.

15. A machine of the class described comprising a slide, an arm supported for swinging movement by said slide, a spring-operated plunger on the slide for normally applying a swinging force to said arm, a latch slidably carried by the arm, a spring acting against the latch to normally move the same toward its operative position, the spring being carried by said arm and the latch having a rack, and a pinion supported by said arm for operating the rack and thereby the latch.

In testimony whereof I aiiix my signature in presence of-two witnesses. A

BENGT M. lV. HANSON.

Witnesses: i

H. C. WoGLoM, RICHARD F. Dow. 

